3results about How to "Eliminate sharp corners" patented technology

The invention discloses a vehicle frame welding positioning device, and particularly relates to the technical field of part welding, the vehicle frame welding positioning device comprises a mounting base and two groups of positioning power frames, two symmetrical positioning frames are mounted on one side of each group of positioning power frames, and a positioning assembly for restraining multi-directional displacement of a vehicle frame is arranged on one side of each positioning frame; the positioning assembly comprises two inclined positioning pins symmetrically installed on one side of the positioning frame, and one side of each inclined positioning pin is provided with a stable tooth plate. Two-way cross constraint can be achieved on a part between the two positioning frames through the contact face of the inclined structure of the inclined positioning pin, the inclined face can actively generate directional counter-acting force through tight contact with the part, and the transversely-inclined contact face can directly offset the force of the part deviating towards the side face; and the longitudinally inclined contact surface can firmly lock the moving trend of the part in the length direction, so that the part is always stabilized on a preset positioning reference, and the stable positioning of the positioning frame on the part is ensured.

This application relates to the field of switches, and more particularly to a magnetic switch for children's play, including a magnetic lock and a magnetic key. The magnetic lock includes a mounting base for connecting to a cabinet door, a latching structure rotatably disposed on the mounting base for engaging the cabinet door, and a torsion spring disposed between the latching structure and the mounting base. The latching structure is provided with a first magnetic element. The magnetic key includes a handle portion and a magnetic part disposed on one side of the handle portion. The magnetic part is provided with a second magnetic element, which is close to the first magnetic element to form a magnetic attraction. By pressing the magnetic key against the cabinet door at the position where the magnetic lock is located on the back of the cabinet door and sliding it downwards, the latching structure rotates to release the latching restriction on the cabinet door. After removing the magnetic key, the latching structure can be reset under the elastic restoring action of the torsion spring. This structure can ensure the personal safety of children when opening the cabinet door and avoid the potential accidental injury to children caused by the sharp parts of existing keys.

This invention relates to the field of weld seam grinding, and more particularly to a straight seam welded pipe weld seam grinding system, aiming to alleviate the problem of sharp corners remaining after weld seam grinding in related technologies. The straight seam welded pipe weld seam grinding system includes a smooth transition mechanism, which comprises a first drive assembly and a first abrasive belt disposed on the first drive assembly. The first abrasive belt is configured to rotate about a rotation axis parallel to the weld pipe axis during grinding. A lifting frame mechanism is also included, which drives the smooth transition mechanism to move along a straight line, so that the straight segment of the first abrasive belt fits against the weld seam from the top of the weld seam. By incorporating the smooth transition mechanism, this straight seam welded pipe weld seam grinding system can significantly eliminate sharp corners in the weld seam, thereby ensuring the quality of subsequent anti-corrosion coating.